While it's possible, i really doubt it, it's more Sony's style to chase up where the tool came from. And probably ask eBay to remove it (even though it's legal, eBay would definately remove it, and give some bs lie about some made up policy, happens all the time. Ebay also have the right to remove the listing as a violation at the manufacturer's/companies request, no idea why.

So i think, if Sony were much bothered, they would have not let the bidding happen.